424
WWUS73 KFSD 281629
NPWFSD
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1129 AM CDT SUN JUN 28 2026
IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ062-066-067-069>071-
290300-
/O.CON.KFSD.HT.Y.0002.260628T1800Z-260630T0200Z/
LYON-OSCEOLA-DICKINSON-SIOUX-O'BRIEN-CLAY-PLYMOUTH-CHEROKEE-BUENA
VISTA-WOODBURY-IDA-DIXON-DAKOTA-MINNEHAHA-TURNER-LINCOLN-YANKTON-
CLAY-UNION-
INCLUDING THE CITIES OF LENNOX, BATTLE CREEK, ELK POINT, LARCHWOOD,
SIBLEY, IRENE, CENTERVILLE, HULL, CHANCELLOR, ALCESTER, PONCA,
CANTON, NORTH SIOUX CITY, ARNOLDS PARK, VIBORG, PARKER, ROCK RAPIDS,
JEFFERSON, LE MARS, INWOOD, MILFORD, SHELDON, HAWARDEN, HARRISBURG,
SIOUX CITY, CHEROKEE, IDA GROVE, HARTLEY, SIOUX FALLS, BERESFORD,
SIOUX CENTER, SOUTH SIOUX CITY, ROCK VALLEY, HURLEY, SANBORN, ORANGE
CITY, HOLSTEIN, ALLEN, VERMILLION, GEORGE, MARION, SPENCER, SPIRIT
LAKE, STORM LAKE, TEA, YANKTON, AND WAKEFIELD
1129 AM CDT SUN JUN 28 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT MONDAY
* WHAT...HEAT INDEX VALUES 100 TO 105 EXPECTED.
* WHERE...PORTIONS OF NORTHWEST AND WEST CENTRAL IOWA, NORTHEAST
NEBRASKA, AND SOUTHEAST SOUTH DAKOTA.
* WHEN...UNTIL 9 PM CDT MONDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
SDZ060-061-065-068-290200-
/O.CON.KFSD.HT.Y.0002.260628T1800Z-260629T0200Z/
HANSON-MCCOOK-HUTCHINSON-BON HOMME-
INCLUDING THE CITIES OF SCOTLAND, MONTROSE, TYNDALL, FREEMAN,
BRIDGEWATER, AVON, SPRINGFIELD, EMERY, SALEM, CANISTOTA, ALEXANDRIA,
TRIPP, MENNO, TABOR, PARKSTON, AND CLAYTON
1129 AM CDT SUN JUN 28 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 100 EXPECTED.
* WHERE...BON HOMME, HANSON, HUTCHINSON, AND MCCOOK COUNTIES.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.
MNZ072-080-081-089-090-098-290300-
/O.CON.KFSD.HT.Y.0002.260629T1800Z-260630T0200Z/
LYON-MURRAY-COTTONWOOD-NOBLES-JACKSON-ROCK-
INCLUDING THE CITIES OF MARSHALL, WINDOM, JACKSON, LUVERNE,
WORTHINGTON, SLAYTON, LAKEFIELD, MOUNTAIN LAKE, AND FULDA
1129 AM CDT SUN JUN 28 2026
..HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 9 PM CDT MONDAY
* WHAT...HEAT INDEX VALUES UP TO 104 EXPECTED.
* WHERE...A PORTION OF SOUTHWEST MINNESOTA.
* WHEN...FROM 1 PM TO 9 PM CDT MONDAY.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
WEISSER
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